AST BMW F87 M2 & M2 Competition Lowering SpringsGive your BMW F87 M2 the extra stance it needs with AST lowering springs. Fitting both the non Competition and Competition models of the BMW F87 M2 Coupe. AST Lowering Springs are manufactured from a premium high tensile chromium silicone wire which is handpicked by AST engineers for its quality and metal consistency. Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is